De Santo, Antonella and The ATLAS Collaboration, (2012) Search for R-parity-violating supersymmetry in events with four or more leptons in sqrt(s) =7 TeV pp collisions with the ATLAS detector. Journal of High Energy Physics, 2012 (12). p. 124. ISSN 1029-8479
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Abstract
A search for new phenomena in final states with four or more leptons (electrons or muons) is presented. The analysis is based on 4.7 fb−1 of $ \sqrt{s}=7\;\mathrm{TeV} $ proton-proton collisions delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in two signal regions: one that requires moderate values of missing transverse momentum and another that requires large effective mass. The results are interpreted in a simplified model of R-parity-violating supersymmetry in which a 95% CL exclusion region is set for charged wino masses up to 540 GeV. In an R-parity-violating MSUGRA/CMSSM model, values of m 1/2 up to 820 GeV are excluded for 10 < tan β < 40.
Item Type: | Article |
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Additional Information: | I established and have led for five years (2007-12) the ATLAS SUSY Multilepton physics group, which searches for supersymmetry signals in final states with three or more leptons at ATLAS. I successfully led this group to first publications using the ATLAS 2011 dataset. I was lead author of this paper and my post-doc was one of two editors of the paper. Article No 124 |
Schools and Departments: | School of Mathematical and Physical Sciences > Physics and Astronomy |
Subjects: | Q Science > QC Physics > QC0770 Nuclear and particle physics. Atomic energy. Radioactivity > QC0793 Elementary particle physics |
Depositing User: | Antonella DeSanto |
Date Deposited: | 11 Jan 2013 15:04 |
Last Modified: | 02 Jul 2019 23:52 |
URI: | http://sro.sussex.ac.uk/id/eprint/42448 |
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